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Table 4 Results of case studies conducted in IEEE-14 bus system under various power system conditions

From: An adaptive supervised wide-area backup protection scheme for transmission lines protection

Power System Condition Bus number where MPMU is installed Connected branches with MPMU installed bus Measurements of phasor currents from MPMU connected branch Is fault detected?
((|IR2|& |IR3|) or (|IY2|& |IY3|) or (|IB2|& |IB3|)) > 0
(Y/N)
|IEHC| Is other than fault detected?
(|IR1| or |IY1| or
|IB1|) > |Ir| (Y/N)
Parent bus,
Faulty branch between two buses
Relays to be supervised Fault type classified
|IR1|, |IR2|, |IR3| |IY1|, |IY2|, IY3| |IB1|, |IB2|, |IB3|
Power Swing Without fault 2 2-5 0.28, 0, 0 0.28, 0, 0 0.29, 0, 0 N --- Y ---,
Branch
6-11
R6–11 & R11–6 ---
4 4-5 0.27, 0, 0 0.28, 0, 0 0.25, 0, 0
6 6-11 1.7, 0, 0 1.69, 0, 0 1.68, 0, 0
6-13 0.57, 0, 0 0.57, 0, 0 0.57, 0, 0
6-5 0.6, 0, 0 0.6, 0, 0 0.6, 0, 0
8 8-7 0.52, 0, 0 0.51, 0, 0 0.54, 0, 0
13 13-14 0.58, 0, 0 0.58, 0, 0 0.58, 0, 0
13-12 0.284, 0, 0 0.284, 0, 0 0.284, 0, 0
With fault (L-L-L Fault with FR of 20Ω & FIA of 00 at 50 km in branch 6–11 from BUS-6) 2 2-5 0.395, 0.09, 0.05 0.375, 0.078, 0.017 0.233, 0.166, 0.142 Y 0.263 --- BUS-6,
Branch 6-11
R6–11 & R11–6 RYB
4 4-5 3.829, 0.623, 0.485 3.743, 0.056, 0.096 2.007, 0.1226, 0.563 0.984
6 6-5 3.432, 0.548, 0.44 3.264, 0.123, 0.17 2.598, 0.66, 0.598 1.154
6-11 4.82, 0.809, 0.641 4.579, 0.187, 0.216 3.559, 0.968, 0.824 1.662
8 8-7 0.282, 0.012, 0.009 0.268, 0.017, 0.027 0.267, 0.022, 0.036 0.055
9 9-10 3.829, 0.623, 0.485 3.743, 0.056, 0.096 2.92, 0.66, 0.563 1.178
11 11-6 4.755, 0.837, 0.61 4.78, 0.148, 0.224 3.555, 0.913, 0.617 1.535
13 13-6 4.823, 0.741, 0.584 4.614, 0.07, 0.039 3.713, 0.869, 0.792 1.51
Load Encroachment Without fault 2 2-4 0.28, 0, 0 0.3, 0, 0 0.28, 0, 0 N --- Y ---,
Branch 4-3
R4–3 & R3–4 ---
4 4-3 2.38, 0, 0 2.4, 0, 0 2.38, 0, 0
5 5-4 0.646, 0, 0 0.646, 0, 0 0.643, 0, 0
6 6-5 0.59, 0, 0 0.58, 0, 0 0.58, 0, 0
8 8-7 0.35, 0, 0 0.35, 0, 0 0.35, 0, 0
9 9-4 1.43, 0, 0 1.43, 0, 0 1.44, 0, 0
11 11-10 0.585, 0, 0 0.585, 0, 0 0.581, 0, 0
13 13-14 0.298, 0, 0 0.29, 0, 0 0.29, 0, 0
With fault (L-L-L Fault with FR of 25 Ω & FIA of 200 at 20 km in branch 4–9 from BUS-4) 2 2-5 1.286, 0.091, 0.061 1.293, 0.204, 0.236 1.27, 0.213, 0.212 Y 0.446 --- BUS-4,
Branch 4-9
R9–4 & R4–9 RYB
4 4-9 4.391,1.945, 0.599 3.619, 1.947, 0.603 2.947, 1.589, 0.919 3.416
5 5-4 2.031, 0.417, 0.19 1.756, 0.449, 0.265 1.866, 0.514, 0.392 0.948
6 6-11 0.496, 0.094, 0.037 0.413, 0.126, 0.088 0.408, 0.095, 0.079 0.221
8 8-7 0.337, 0.013, 0.009 0.32, 0.037, 0.021 0.319, 0.036, 0.028 0.064
9 9-4 1.508, 0.842, 0.235 1.195, 0.784, 0.260 0.776, 1.048, 0.502 1.673
11 11-9 0.579, 0.083, 0.059 0.565, 0.093, 0.078 0.565, 0.131, 0.131 0.243
13 13-14 0.252, 0.085, 0.008 0.342, 0.099, 0.017 0.271, 0.121, 0.034 0.182
Unbalanced loading 2 2-5 0.281, 0, 0 0.285, 0, 0 0.284, 0, 0 N --- Y ---,
Branch
6-5
R6–12 & R12–6 ---
4 4-5 0.279, 0, 0 0.28, 0, 0 0.278, 0, 0
6 6-12 1.699, 0, 0 1.701, 0, 0 2.102, 0, 0
13 13-6 0.569, 0, 0 0.568, 0, 0 0.5686, 0, 0
5 5-1 0.584, 0, 0 0.583, 0, 0 0.585, 0, 0
8 8-7 0.35, 0, 0 0.376, 0, 0 0.424, 0, 0
9 9-10 1.433, 0, 0 1.542, 0, 0 1.7, 0, 0
11 11-6 0.283, 0, 0 0.284, 0, 0 0.285, 0, 0